Close container div tag in routing error page
Remove suggestion that Procs can be used as session secrets.
Remove warning, remove not used variable, and make methods private

Warning: "shadowing outer local variable - routes".
allow toggling about env, not just showing
Merge pull request #8768 from goshakkk/about-env-toggling

Allow toggling "about app's env", not just showing
config.assets.enabled is now true by default
Make sure assets is disable when --skip-sprockets is used
No need to give an example where there is generated code right there to serve as the example
proper article in the getting started guide
deprecate `assert_blank` and `assert_present`.

They don't add any benefits over `assert object.blank?`
and `assert object.present?`
Merge pull request #8769 from senny/deprecate_assert_blank

deprecate `assert_blank` and `assert_present`.
fix img width in guides
Fix indention issue in generated template
Fix indention issue in generated template
Assert config.filter_parameters should be able to be set in a initializer
Needless fancy structure that did not anything
wrap terminal prompt marks in a pre tag
Merge pull request #8766 from jcoglan/session_token_docs

Remove suggestion that Procs can be used as session secrets.

[ci skip]
Move config.filter_parameters to you own initializer file

This is very rarely changed and does not deserve to be in application.rb
Fix documentation to content_tag_for [ci skip]